On 16/4/2023 11:48 pm, Wuping Xin wrote:
A better fix is to change Line 639 of win32com/server/policy.py to the
following:
import inspect
if len(inspect.getfullargspec(func).args) == 1:
return func()
else:
return func(*args)
Then we can make VBA, Delphi, C++ .... all clients happy.
Agree? Should I submit a pull request?
I'm not sure ATM - I'd be quite surprised if there was a bug in COM
functions with no args, so it may be more subtle than that. But you
should certainly get either a PR or issue on github for this, ideally
with a complete repro. It might be quite some time (ie, many weeks)
before I can look at this in more detail.
Thanks,
Mark
Wuping
------ Original Message ------
From "Wuping Xin" <wup...@caliper.com>
To "Mark Hammond" <mhamm...@skippinet.com.au>
Cc "Python-win32@python.org" <Python-win32@python.org>
Date 4/16/2023 9:28:48 AM
Subject win32com, server/policy.py bug? policy.py Line 639
For the following code, the method "GetPerson" has no explicit
argument (except self).
classMyCOMObject:
_public_methods_=["GetPerson"]
#_reg_clsid_ = '{44ee76c7-1290-4ea6-8189-00d5d7cd712a}'
#_reg_desc_ = "My COM server"
#_reg_progid_ = "MyCOMObject"
defget_person(self):
person=Person("haha",45)
wrapped=win32com.server.util.wrap(person,useDispatcher=my_dispatcher)
returnwrapped
When calling from VBA, like below , it works fine.
Set o = CreateObject("MyCOMObject")
Set p = o.get_person()
However, when calling from C++, or Delphi, the following error will
be thrown:
/"TypeError: MyCOMObject.get_person() takes 1 positional argument but
2 were given"/
//
Delphi code:
/procedure TForm1.Button1Click(Sender: TObject); /
/var /
/ o: OleVariant; /
/ p: OleVariant; /
/begin /
/ o := CreateOleObject('MyCOMObject'); /
/*p := o.get_person()*; // error will be thrown /
/ s := p.name; /
/ age := p.age; /
/ ShowMessage(s); /
/end;/
//
The fix is to change Line 639 of policy.py to the following:
iflen(args)==1and(args[0]==-2147352572orargs[0]==None):
returnfunc()
else:
returnfunc(*args)
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